The elections of 1791, held by census suffrage, brought in a legislature that desired to carry the Revolution further. Prominent in the legislature were the Jacobin Club and its affiliated societies throughout France.

The Legislative Assembly first met on 1 October 1791. It consisted of 745 members, mostly from the middle class. The members were generally young and since none had sat in the previous Assembly, they largely lacked national political experience. They tended to be people who had made their name through successful political careers in local politics.

The remainder of the House, 345 deputies, generally belonged to no definite party. They were called The Marsh (Le Marais) or The Plain (La Plaine). They were committed to the ideals of the Revolution, hence generally inclined to side with the Left, but would also occasionally back proposals from the Right.

The king's ministers, named by him and excluded from the Assembly, are described by the 1911 Encyclopædia Britannica as "mostly persons of little mark".

The 27 August 1791 Declaration of Pillnitz already threatened France with attack by its neighbors. King Louis XVI favored war hoping to exploit a military defeat to restore his absolute power—the Assembly was leaning toward war and to spread the ideals of the Revolution.[1] This led in April 1792 to the first of the French Revolutionary Wars.

The king vetoed many of the Assembly's bills throughout its existence such as these:

Legislation declaring the émigrés guilty of conspiracy and prosecuted as such was passed on 8 November 1791, but vetoed by Louis.

Enforcement of the Civil Constitution of the Clergy: on 29 November 1791, the Assembly decreed that every non-juring clergyman who did not take the civic oath within eight days would lose his pension and—if any troubles broke out—he would be deported. Louis vetoed the decree as a matter of conscience.

Louis XVI formed a series of cabinets, veering at times as far-left as the Girondins. However, by the summer of 1792, amid war and insurrection, it had become clear that the monarchy and the now-dominant Jacobins could not reach any accommodation. On 11 July 1792, the Assembly formally declared the nation in danger because of the dire military situation.

On 9 August 1792, a new revolutionary Commune took possession of Hôtel de Ville and early on the morning of 10 August the insurgents assailed the Tuileries, where the royal family resided. Louis and his family sought asylum with the Legislative Assembly.

The Assembly stripped Louis, suspected of intelligence with the enemy, of all his royal functions and prerogatives. The king and his family were subsequently imprisoned in the Temple. On 10 August 1792, a resolution is adopted to summon a new National Convention, to be elected by universal suffrage.

Many who had sat in the National Constituent Assembly and many more who had sat in the Legislative Assembly were re-elected. The Convention met on 20 September 1792 and became the new government of France.

There were numerous reforms passed by the Legislative Assembly that addressed various topics including divorce, émigrés and the clergy.

The Legislative Assembly implemented new reforms to help create a society of independent individuals with equal rights.[2] These reforms included new legislation about divorce, government control over registration and inheritance rights for children. The registration of births, marriages and deaths became a function under the government instead of the Catholic Church.[3] The new laws introduced adoption and gave illegitimate children inheritance rights equal to those of legitimate children.[4][5] Before 1791, divorces could only be granted for adultery and other violations of the marriage contract,[6] but under the new reform a couple could also get divorced if they met one or more of the following:

If the couple had been formally separated before and needed a legalized divorce[9]

If there was dissolution of marriage due to "insanity, condemnation to an infamous punishment, violence or ill-treatment, notoriously dissolute morals, desertion for at least two years, absence without news for at least five years, and emigration"[10]

The new divorce laws were not sexually discriminatory as both the man and woman had the right to file for a divorce—the women petitioned for the most divorce decrees.[11]

The émigrés, mainly members of the nobility and public office who fled France after the events of the Revolution turned violent, were a major focus of the Legislative Assembly. In their decree on 9 November 1791, the Legislative Assembly established a three-class hierarchy of émigrés as well as the punishments that would correspond with each class. The first class was composed of the princes and other people of high birth who "formed [emigration’s] rallying point and controlled both its recruiting in France and its organization abroad".[12]

The second class was composed of officials in public office, soldiers and other members of society with less organizational clout than members of the nobility yet more influence than the common people. The third and final class of recognized émigrés encompassed the average French citizens who left France yet commanded little to no direct influence over emigration proceedings.[13]

In twelve articles, the decree outlined the economic and political punishments of the first and second classes—particularly assigning deadlines by which time emigration would be classified as an act of treason. Article 3 dictated that first class émigrés still abroad after 1 January would be "impeached for treason and punished with death" and articles 6 through 10 imposed a loss of position, salary, and even citizenship for second class émigrés still abroad after 14 September.[14] Along with the declaration that emigration could result in the loss of active citizenship, article 6 established the Assembly’s right to sequester first class émigrés’ revenues and article 11 classified émigré soldiers as deserters.[15]

As the Legislative Assembly considered third class émigrés to be faultless victims of trickery and seduction by the other two classes, the legislators' decree explicitly avoided issuing punitive measures against third class émigrés—whereas the other classes were to be financially and socially punished, third class émigrés were to be treated with "sympathy and understanding".[16] The émigrés decree was vetoed by the king three days later.[17]

The laws regarding the clergy were mostly made in response to a reform passed by the National Assembly in July 1790, known as the Civil Constitution of the Clergy.[18] In this decree, the National Assembly took the power to appoint bishops and curés away from the king. Many members of the Catholic clergy objected to this ruling.[19] In response, the National Assembly required a public oath of fidelity from the clergy if they wanted to retain their positions in the Catholic Church.[20]

This decision was not well received by a substantial portion of the clergy, which is why the Legislative Assembly felt it was necessary to address the issue. Those unwilling to take the oath were known as non-juring members.[21] On 29 November 1791, the Legislative Assembly decreed that any who refused to take the oath were committing a political crime and were liable to punishments including loss of pension and expulsion from their homes in the event of religious disturbances.[22]

The Legislative Assembly was driven by two opposing groups. The members of the first group were conservative members of the bourgeoisie (wealthy middle class in the Third Estate) that favored a constitutional monarchy, represented by the Feuillants, who felt that the revolution had already achieved its goal.[23] The other group was the democratic faction, for whom the king could no longer be trusted, represented by the new members of the Jacobin Club[24] that claimed that more revolutionary measures were necessary.[25][note 1]